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Finding the Fourth Proportional to 633,043.12, 873,619.20 and 346,589.92

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Solution

The fourth proportional to 633,043.12, 873,619.20 and 346,589.92 is: 478,304.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,043.12 : 873,619.20 = 346,589.92 : x
  2. Step 2: Convert to fraction form
    633,043.12/873,619.20 = 346,589.92/x
  3. Step 3: Cross multiply
    633,043.12x = 873,619.20 × 346,589.92
  4. Step 4: Simplify right side
    633,043.12x = 302,787,608,638.46
  5. Step 5: Solve for x
    x = 302,787,608,638.46/633,043.12
  6. Step 6: Final answer
    x = 478,304.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.